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Lex Fridman PodcastPodcast1 Oct 2025Source: lexfridman.comHost: Lex Fridman

#482 – Pavel Durov: Telegram, Freedom, Censorship, Money, Power & Human Nature

In plain words

This interview covers Telegram founder Pavel Durov's philosophy of running a tiny core team (~40 people) to serve 1 billion users, and why he refuses to monetize user data. He's bullish on Bitcoin, predicting $1 million and saying his personal expenses come from Bitcoin bought in 2013, not Telegram. Key holdings: Telegram (profitable for the first time in 2024 via subscriptions and blockchain), Bitcoin (Durov's personal financial backbone), and the Ton blockchain (used for Telegram's NFT and username trading). He reveals he gave up ~80% of potential ad revenue by rejecting targeted ads based on user data.

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Lex Fridman’s in-depth conversation with Telegram founder and CEO Pavel Durov focused on free speech, user privacy protection, and technology philosophy. Durov emphasized that Telegram has over 1 billion active users, continues to innovate with a very small engineering team, and has pioneered numero

~11 min full read · 10 sections
Deep Analysis

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New Analysis: Pavel Durov Interview Sequel (Part 2/2)

1. The Philosophy of Technical Architecture: Engineering Evolution from VK to Telegram

1.1 Bottom-Level Refactoring from PHP to C++

Durov detailed the early evolution of VK's technology stack:

  • Initial Phase: PHP + MySQL + Debian Linux, single-handedly handling both frontend and backend
  • Scaling Phase: Introduced Memcached and Nginx to address concurrency bottlenecks
  • Transformative Phase: After his brother Nikolai returned from Germany, the core data engine (search, advertising, messaging systems) was rewritten in C/C++

Key Data: When Durov met Mark Zuckerberg in Silicon Valley in 2009, VK's page load speed had already surpassed Facebook's, which sparked significant curiosity from the Facebook team at the time.

1.2 The Hidden Cost of Latency

Durov proposed a highly compelling quantitative model:

> Telegram is used by over 1 billion users, opened dozens of times daily. If each open incurs a 0.5-second delay, multiplied by billions of times, humanity would waste hundreds or even thousands of years of life unnecessarily.

This perspective elevates code efficiency to the level of moral responsibility—every developer's carelessness translates into wasted time for global users.

1.3 The Extreme Path of Full-Stack In-House Development

Telegram's technical independence far exceeds industry standards:

Technology Layer Telegram's Approach Industry Norm
Backend Programming Language In-house developed Uses existing languages (Python/Go/Java)
Database Engine In-house developed Uses MySQL/PostgreSQL
Web Server In-house developed (partially) Uses Nginx/Apache
Encryption Algorithm In-house developed MTProto Uses existing libraries (e.g., OpenSSL)
Client Code Open source + reproducible builds Closed source or partially open source

Reproducible builds are a unique security feature of Telegram—users can verify that the binary downloaded from the App Store is identical to the source code on GitHub. This is a standard that WhatsApp, Signal, and iMessage have all failed to achieve.


2. Educational Experiment: The Extreme Curriculum Design of Academic Gymnasium

2.1 Curriculum Structure

Durov entered the experimental school of St. Petersburg State University at age 11, where the curriculum design was nothing short of extreme:

  • 4 foreign languages: Latin, English, French, German (Ancient Greek optional)
  • Interdisciplinary subjects: Biochemistry, psychoanalysis, evolutionary psychology
  • Intensive mathematics: At the same level as specialized math classes
  • Goal setting: It was impossible to achieve straight A's, but Durov insisted on challenging this

2.2 The Value of Competition Mechanisms

Durov is highly critical of the trend toward eliminating competition in education:

> If you remove competition from the education system, children will compete elsewhere—such as in video games.

He observes that after some Western countries abolished public grading and rankings, while short-term anxiety decreased, it led to:

  • Students losing motivation to learn
  • Inability to adapt to real-world competition after graduation
  • A decline in overall economic competitiveness (compared to China, South Korea, and Singapore)

2.3 Mathematics as the Foundation of Thinking

Durov believes mathematics is the only discipline that encourages independent thinking rather than repeating others' viewpoints. This ability directly translates into problem-solving skills in programming and entrepreneurship.


3. Hiring Philosophy: Competition-Driven A-Team

3.1 Core Engineering Team Size

Telegram’s core engineering team consists of only about 40 people (including backend, frontend, designers, and system administrators), supporting over 1 billion users.

3.2 Counterintuitive Team Management

Durov put forward a disruptive view:

> I once had an experience where firing one engineer actually improved the team’s productivity.

Reason analysis:

  • B-level employees not only produce low output but also lower the morale of the entire team
  • When A-level employees work with B-level employees, they feel unable to reach their full potential
  • B-level employees, due to insufficient workload, actively create non-existent problems

3.3 Competition-Based Hiring Model

Telegram selects talent through public programming competitions, with advantages including:

  • Real capability verification: rather than resumes or interview performance
  • Long-term observation: consistency in candidates’ performance across multiple competitions
  • Zero big-tech contamination: unaffected by the "pass-the-buck" culture of large companies
  • Product understanding: candidates are themselves Telegram users

4. Design Philosophy: The Invisible Art

4.1 Engineering Details of the Default Chat Background

Durov revealed the design process behind Telegram’s default gradient background:

  • 4-color gradient instead of 2 colors, with continuous dynamic changes
  • Vector overlay pattern: infinite scaling without quality loss
  • Thousands of iterations: selecting the color combination that best aligns with human biological instincts
  • Introduction of randomness: to avoid visible color banding

4.2 Complexity of the Message Deletion Animation

The implementation challenges of the "Thanos snap" effect (messages disintegrating into particles):

  • Synchronized displacement of particle animation with surrounding messages
  • Compatibility across different devices (older phones, tablets, desktops)
  • Animation duration control: must not be too long to disrupt user experience

4.3 Technological Breakthrough in Vector Stickers

Telegram’s vector animated stickers (launched in 2015) led WhatsApp by approximately 3 years and 8 months:

Feature Telegram WhatsApp
Format Vector animation GIF/WebM
File size A few KB – 30 KB Hundreds of KB – several MB
Frame rate 60 FPS Variable
Scaling quality Infinite Pixelated

5. The Moral Boundaries of the Business Model

5.1 Profit Path

Telegram achieved profitability for the first time in 2024, with the path including:

1. Premium Subscriptions: Over 15 million paying users, generating annual revenue exceeding $500 million

2. Contextual Advertising: Based on channel topics, not user personal data

3. Blockchain Integration: NFTs (gifts) and username trading on the Ton chain

4. Mini-App Commissions: Only 5%, far below the 30% charged by Apple/Google

5.2 Revenue Voluntarily Foregone

Durov explicitly stated that by refusing targeted advertising based on user data, Telegram has foregone approximately 80% of its potential advertising revenue.

5.3 Bitcoin as Financial Backing

Durov revealed that his personal living expenses (including private jets and high-end rentals) are not funded by Telegram but rather by Bitcoin investments initiated in 2013. He firmly believes that Bitcoin will reach $1 million.


6. The Absurd Theater of Geopolitics

6.1 A Kafkaesque Experience with the French Investigation

Durov described the details of his detention by French police:

  • 4 days: A windowless concrete room, no pillow
  • 15 felony charges: Holding the platform liable based on user behavior
  • Technical ignorance: Investigators lacked basic understanding of encryption and machine learning

6.2 Attempts at Intervention in Moldova and Romania

Durov disclosed two instances of pressure from French intelligence agencies:

Event Demand Durov’s Response
Moldova election Ban dozens of channels Banned only the few that violated rules, refused the rest
Romania election Ban channels of a conservative candidate Publicly refused and disclosed the meeting’s content

Key turning point: After the Moldova incident, French intelligence agencies "put in a good word" with the investigating judge, leading Durov to realize the investigation may have been politically motivated.

6.3 The Irony of Double Standards

> Ukrainians say you work for Russia, Russians say you work for Ukraine.

Durov noted that governments want Telegram to protect free speech in rival countries, but demand censorship in their own countries.


7. Death and Quantum Immortality

7.1 The 2018 Poisoning Incident

Durov first publicly disclosed the 2018 assassination attempt:

  • Symptoms: Severe full-body pain, loss of vision and hearing, difficulty breathing
  • Aftermath: Ruptured blood vessels, unable to walk for two weeks
  • Psychological impact: Paradoxically felt freer—"You were already dead; every day is a gift"

7.2 The Philosophy of Quantum Immortality

Durov proposed a thought experiment based on the many-worlds interpretation:

> Perhaps every time I die, my consciousness shifts to another parallel universe where I did not die. Eventually, we would achieve quantum immortality—living to 1,000 years old, while other versions of us have long since perished.


8. Key Data Comparison

Dimension Telegram Industry Average / Competitors
Core Engineering Team ~40 people Hundreds to thousands
Number of Servers ~100,000 Varies by scale
Automation Level Nearly fully automated Heavy manual operations
Founder Shareholding 100% Typically <20%
Advertising Revenue Foregone ~80% 0%
Open-Source Reproducible Builds Yes (iOS + Android) None
End-to-End Encryption Launch 2013 WhatsApp 2016
Vector Stickers Launch 2015 WhatsApp 2018

9. Conclusion: Kafka’s Prophecy and Durov’s Resistance

Durov’s entire career—from VK to Telegram—has been a protracted battle against systemic alienation. He faces not a single government, but a global trend: bureaucracies, intelligence agencies, and commercial competitors all seek to reduce individuals to controllable "cases."

Yet Durov’s response remains consistent: non-cooperation, no fear, no compromise. He chooses to build his own defense system through technology (encryption, automation, open source) and philosophy (Stoicism, quantum immortality).

As he said at the end of the interview:

> I would rather lose everything than yield to this pressure. If you yield, you become an empty shell of yourself on a deep biological and spiritual level.

This may be the answer that Kafka’s Josef K. never found—not waiting for the trial, but refusing to recognize the legitimacy of the court.